The Supermarine 300m Date Bi-Colour with Leather Strap combines rugged functionality with refined luxury. This striking timepiece pairs 904L stainless steel—known for exceptional corrosion resistance and lustrous finish—with elegant 18ct rose gold accents, creating a sophisticated dive watch that transitions seamlessly from water to wrist.
The sleek case profile houses a rose gold-capped, knurled-edge bezel featuring a rich brown aluminum insert with trapezoid indexes. This maritime-inspired design continues on the brown gradient dial, where a subtle crosshair pattern draws focus to the center. Applied indexes and Super-LumiNova®-filled hands ensure exceptional readability in all lighting conditions.
A rose gold-capped screw-down crown adds the perfect finishing touch, while the engraved case back—adorned with a detailed map of the world's oceans—celebrates the watch's adventurous spirit and deep maritime heritage.
For versatile styling, this model comes with a premium brown leather strap featuring cream contrast stitching, offering a warm, sophisticated appearance that complements both casual and formal settings.
Functions
Central Hour/Minute/Second
Date at 3 O'clock
Unidirectional rotating bezel
Movement
Calibre: Modified Calibre 11 1/2''' BE-92AV
No of Jewels: 25 Jewels
Glucydur balance wheel
Anachron balance spring
Nivaflex mainspring
Frequency: 28,800bph (4Hz)
Power reserve: 50-hour
Case specifications
Case construction made from 904L stainless steel and rose gold
18ct rose gold capped knurled edged uni-directional dive bezel with brown aluminium insert
18ct rose gold capped screw-in crown
Case Diameter: 40mm
Case Length: 49mm
Case Depth: 12mm
Lug Width: 20mm
Case back: Stainless steel screw-in and decorated closed case back
Dial and Hands specifications
Brown gradient dial with applied indexes infilled with white Super-LumiNova® (Blue emission)
Brown dial ring with printed minutes track
Rose gold coloured hour, minute and second hands infilled with light brown Super-LumiNova® (Blue emission)
Crystal
Domed anti-reflective, scratch resistant sapphire crystal
Water Resistance
30 ATM, 300 metres
Strap
Brown leather strap with cream side stitching
