Replacement FKM Rubber Strap for Omega Seamaster 600

Product Overview

The Seamaster 600 is a 42 mm dive watch whose case line a flat band cannot follow, and this replacement is moulded for exactly that shape. It is made for the 42 mm Omega Seamaster 600 — steel, two-tone and the rest of the 600 family on the same fitting — with an end that curves into the case instead of leaving a step at the lugs. This is one of our custom fluororubber material watch straps, a straight swap for the one the watch came with.

Most people arrive here for one of two reasons. The first is wear: the original resin strap has gone hard and shiny, the holes have started to tear, or the band no longer sits flat on the wrist. The second is style: the watch usually lives on its steel bracelet and the owner wants a rubber option for summer, for the pool and for travel. Both are the same job — take the bracelet or the tired original strap off, press this one on, and the watch carries on looking like a Seamaster.

Day to day it behaves like part of the watch. It is light enough to forget about, it keeps the dive-watch silhouette of the 600 rather than looking like a generic band, and the three colours echo the watch's own palette. It is the practical way back to an original look once the band has aged out, and the fit is what makes people keep it on. The Seamaster shown in the photographs is there to display the strap and is not part of the sale.

Compatibility & Case Fit

FKM Fluororubber Material & Build

FKM — fluoroelastomer, which is what most people mean when they say fluororubber — is the rubber used where a strap has to live with heat, sweat and sunlight without changing shape. This custom fluororubber material watch strap is moulded from it rather than from ordinary silicone or natural rubber, and the difference shows up over months, not days.

Silicone is soft and inexpensive, but it collects dust and lint and starts to look tired quickly. Natural rubber and the resin band harden, go shiny and eventually split. FKM keeps its elasticity far longer. It takes sweat and body oils without turning slippery or sticky, so the band stays comfortable against the skin through a hot day, and it resists UV well enough that black stays black and blue does not chalk over a summer of sunlight. Heat and the everyday chemicals a dive watch meets do not leave it tacky either. If the strap you are replacing has stiffened with age, this is the opposite experience.

The moulding is where the finish shows. The band comes out of the tool as one piece with the curve already formed in the end, the edges are trimmed clean rather than left flashy, and the surface carries a fine matte texture that hides fingerprints and keeps the strap from looking slick on the wrist. It is light and slim enough to add almost nothing to the watch on the wrist.

Specifications

Colour Options & Pairing

• Black — the closest to the standard dive-watch look. It reads as part of the watch rather than an add-on, and it hides everyday marks better than the brighter finishes.
• Blue — picks up the Seamaster's blue bezel and dial and looks especially settled on a steel case.
• Orange — the classic dive accent and the liveliest of the three. It suits steel or two-tone cases and works well as a second strap for weekends, holidays and the pool.
• Two straps, one watch: a black for the working week and an orange or blue for everything else costs little more than a single standard replacement, and swapping between them takes seconds.
• Colour on screen: the rubber has a soft matte surface that photographs differently under different light, so expect each colour to look a little deeper or brighter in person than it does on a phone or a monitor.
• Other watches in the box: the same Fuerman range covers other lug widths and end shapes, a fluororubber-nylon mix for lighter wear, quick-release silicone bands in the tropical style, and crocodile leather for dress watches, so a second strap for another watch is usually a short search away.
• Custom work: if you need a different width, colour or end shape for another watch, ask our team about custom fluororubber material watch straps and we will tell you what is possible.

Fitting & Original Clasp Reuse

1. Work on a soft cloth on a table with the watch lying flat. Small parts bounce, and a clear surface saves a hunt later.
2. Take the old band off. Standard spring bars come out with a spring bar tool; the original quick-release strap simply unclips when you press its levers.
3. Check the orientation of the new strap before you fit it. The curved end has a right way up, and the curve should follow the line of the case rather than fight it.
4. Seat one end first: push the spring bar into one lug, then press the other side in until it clicks. The bars come fitted to the strap, so there is nothing to assemble.
5. Check both sides before moving on. The end should sit flush against the case with no gap and no proud edge, and the strap should pivot freely on the bars.
6. Refit the clasp. Your original Omega push-button deployant clasp goes straight back onto the buckle end, which is why the no-buckle option exists; if you chose a buckle with the strap, it mounts in the same place.
7. Thread the strap through the keeper and the clasp, close it on a middle setting and try the watch on. Adjust one hole at a time until the case sits centred on your wrist.
8. Keep the old band and any spare spring bars. A worn original is useful as a length reference, and spare bars are the one small part worth having in a drawer.

Owner Feedback & Reviews

• The end fit comes up first. Owners who order this watch strap online tend to mention the meeting point between band and case: seated properly, the line runs continuously from lug to band instead of stepping down.
• No breaking-in period. Buyers notice the rubber is already soft on the first wear, unlike the stiff resin bands that ship on many watches and stay stiff for weeks.
• The original clasp feels unchanged. Many owners refit the clasp the watch came with rather than taking a buckle, and report the push-button working exactly as before.
• Water is a non-event. Divers and swimmers say the band comes out of the pool or the sea without holding water or sagging, and that it looks the same wet as dry.
• Reviews and photos. Ratings and pictures from previous orders sit at the bottom of the listing, so you can see the strap on real wrists and on both steel and two-tone cases before you decide.

Ordering & Delivery

1. Ordering a watch strap online for a specific dive watch starts with the reference number. Check that your case is covered; if your Seamaster is not one of the listed references, send us a photo of the case back before you order.
2. Choose your colour and your hardware at checkout. The no-buckle option is for anyone keeping the clasp they already own.
3. Tell us your wrist measurement if you are near either end of the fit range, so we can confirm the length before it ships.
4. Ask for the current lead time and the delivery services available to your country — these change with the season and the destination.
5. Check which payment methods are open to you at checkout, and flag anything unusual, such as a different billing address or a business order, to our team first.
6. Ordering for a shop or for several watches? Ask about larger quantities and how multiple straps are packed together.
7. Ask about the returns and after-sales process that applies to your order, so there are no surprises if the fit is not right.
8. Keep your reference number and order details. A repeat order, or a second colour for the same watch, then becomes a one-line message.

Care & Replacement

FKM is the low-maintenance part of a watch, and this band asks for very little: a rinse, somewhere sensible to live when it is off the watch, and an occasional look at the two spring bar holes. A minute of attention every few weeks is what keeps the curved end sitting the way it does on day one.

After A Swim Or A Hot Day. Rinse the strap under fresh running water when you take the watch off — after the sea, the pool, a gym session or a hot commute. The place that matters most is the seam where the curved end meets the case, because fine sand, salt and dried sweat collect there and stay there, and grit left sitting in that joint rubs against the case each time the strap flexes. Run a fingertip along the joint under the water, then dry the band with a soft cloth before putting it back on. Water itself is never the issue here; it is what dries on the surface afterwards.

Cleaning. For anything that has dried on — sun cream, dust, the grey film that appears on a black strap after a few weeks of wear — use lukewarm water with a drop of mild hand soap, work it in with a soft brush, and rinse thoroughly. Soap left to dry leaves a dull haze, so the rinse counts as much as the wash. Keep solvents, nail varnish remover, abrasive polish and silicone dressings away from the rubber; the matte surface does not need feeding, and those products only spoil the finish.

Skin And Comfort. This fluororubber material watch strap is soft against the wrist and does not hold moisture the way a fabric or leather band does, but any strap worn tight through a long hot day traps sweat underneath. If your wrist feels irritated by the evening, move the clasp one hole looser, dry both the wrist and the band, and leave the watch off overnight. Trapped moisture and salt are what cause that, and the rinse above plus a slightly looser fit deals with both.

Storage Between Wears. Keep a spare band flat rather than folded, ideally in its own soft sleeve, because the curved end is the part that has to hold its shape. A strap squashed under a tool box or creased tightly in a drawer for months can take a set that no longer follows the case. If you keep two colours for the same watch, store them separately so the spring bars are always where you left them, and if the watch goes into a box for a season, leave the clasp open rather than clamped on its tightest setting.

What To Check While You Clean. Two spots, and both are quick. First, the spring bar holes at the lug ends: the bar sits in a rubber hole, and that hole carries the load every time the strap moves, so watch for an edge that has begun to elongate or tear. Second, the line where the curved end meets the case — hold the watch up to the light and check that no gap has opened at the lug and that the nose of the strap has not lifted. If both look clean, the strap is doing its job.

When To Replace It. The band will eventually tell you it is finished, and the signs are easy to read: a spring bar hole stretched enough for the bar to shift inside it, a curved end that no longer sits flush so a hairline of light shows against the case, a bend that stays in the rubber when you lay the band flat, and a surface gone chalky or tacky in a way cleaning does not change. None of those is a fault with the watch, and none of them needs a watchmaker. The strap is a wear item — the part most exposed to sweat, sun and water — and fitting a fresh one is simply what keeps the watch looking the way it should.

Only The Band Gets Replaced. Because this strap is shaped to take the original 18 mm Omega deployant clasp, the clasp stays on the watch and a replacement is the band alone — no buckle to buy and no fittings to match. When the time comes to order a watch strap online again, the model name or the case reference is all we need to send the right one, and the spring bars come with it, exactly as they did the first time.

Technical Support & Model Matching

FUERMAN has been supplying watch parts and accessories from Huadu District, Guangzhou since 2010 — 15+ years in the trade, a 60-strong team and a deep ready stock held in China. Our technical team, which includes technicians with 30+ years of watchmaking experience, matches items to your watch by brand, model or reference number before you order, so you know it will fit. Send a photo or a measurement if you are unsure: we will confirm the right choice, talk you through fitting, and stay with you afterwards — troubleshooting, replacement parts and after-sales help long after your order arrives.

FAQ