【Replacement 36mm Pot-Shaped Mineral Glass for Seiko SRPB41J1/SRPJ13J1 – Box-Style Crystal for Cocktail Time】 – Precision-cut replacement watch crystal designed for Seiko Presage Cocktail Time series. Compatible with SRPB41J1 (40.5mm case)- and SRPJ13J1 (39.5mm case)-. Features 36mm diameter--2 with pot-shaped (box-style) slightly domed profile--25 – replicating the iconic aesthetic that enhances the dial’s legendary light-play-. Crafted from durable mineral glass- – the original specification for these Presage models. Available with blue AR coating- to reduce glare and improve legibility. The essential replacement part for restoring your Cocktail Time’s crystal-clear dial visibility.
Perfect Fit for Cocktail Time Series – Specifically engineered for Seiko Presage models including SRPB41J1, SRPJ13J1, SRPJ15J1, and SRPJ17J1--2. The 36mm diameter--2 and pot-shaped (box-style) curvature--25 precisely match the original crystal specification-25. Measure your original crystal before ordering – confirm the 36mm size matches your watch-25.
Iconic “金鱼缸” Box-Style Crystal – Features the signature pot-shaped (slightly domed) profile--25 that defines the Presage Cocktail Time aesthetic-. This box-style crystal-:
Enhances dial depth – the dome creates a magnifying effect that showcases the dial’s multi-layered finish
Captures and refracts light – the curved surface interacts with the dial’s 7-layer gloss coating- for the signature “Cocktail Time” visual effect
Preserves the original design intent – maintains the watch’s vintage-inspired, elegant character
Durable Hardlex Mineral Glass – Crafted from Seiko’s proprietary Hardlex mineral glass- – a hardened glass material rated 7-8 on the Mohs hardness scale-25. Key advantages:
Better scratch resistance than standard glass – more durable for daily wear-
Good impact resistance – Hardlex offers balanced protection against scratches and impacts
Cost-effective replacement – more affordable than sapphire crystal
AR coating option – blue anti-reflective coating reduces glare for clearer dial visibility-
Essential for Watch Restoration – Perfect for:
Replacing scratched or cracked crystals – mineral glass is prone to scratches with daily wear-
Restoring clarity – scratches can distort dial readability under bright light-25
Upgrading to AR-coated glass – reduces glare for improved legibility
Maintaining the Cocktail Time aesthetic – the domed profile is integral to the watch’s vintage charm-
Professional Installation Recommended – Crystal replacement requires precision tools and expertise to ensure a proper water-resistant seal-25. Improper installation can compromise the watch’s 50m water resistance-. Professional installation recommended for best results. Crystal only – movement and gasket not included.
