YEMA SOUS MARINE YSMA23G-GGRBS
The Yema Sous Marine Ref. YSMA23G-GGRBS is a modern diving watch combining classic French styling with robust construction. Its 40.5 mm stainless steel case, scratch-resistant sapphire crystal and original blue rubber strap make it an ideal companion for everyday wear and underwater adventures. Powered by the in-house YEMA2000 automatic movement with a 42-hour power reserve, it delivers reliable precision and performance.
The clean dial offers excellent readability, while the solid construction and timeless design complete the sporty character of this professional diving watch.
Technical Specifications
Reference
Movement
- YEMA2000 in-house calibre
- Mechanical automatic movement
- Self-winding
- Frequency: 28,800 A/h
- Power reserve: approx. 42 hours
- Regulated to ±10 seconds per day
- Maximum rate: ±25 seconds per day
- Functions: Hours, minutes, seconds
Case
- Material: 316L stainless steel
- Circular brushed finish
- Polished edges
- Diameter: 40.5 mm
- Thickness: 12.2 mm
- Lug width: 20 mm
- Screw-down case back
- Screw-down crown with Yema logo
Crystal
- Flat sapphire crystal
- Thickness: 2.3 mm
Bezel
- Unidirectional diving bezel
- 120 clicks
- Aluminium insert
- Super-LumiNova on markings and 12 o’clock triangle
Dial
- Green
- Oversized 3, 6, 9 and 12 o’clock indexes
- Applied brushed stainless steel indexes
- Brushed stainless steel hands
- BGW9 Super-LumiNova
Strap
- Original Yema FKM Viton® rubber strap
- Lug width: 20 mm
Water Resistance
Condition
Scope of Delivery
- Original Yema box
- Original papers
- Full set
- Official international Yema manufacturer warranty (2 years according to the manufacturer’s warranty conditions)
- Statutory warranty rights remain unaffected.
GPSR Product Safety:
- Manufacturer: YEMA (AMBRE France SA), 1 rue Fontaine l'Epine, 25500 Morteau, FR (privilege@yema.com / www.yema.com)
