· Prospex
Alpinist Mechanical GMT
SPB379J1
- Diameter
- 39.5mm
- Thickness
- 13.6mm
- Size
- Midsize
- Lug to lug
- 46.4mm
- Water resistance
- 200m
- Movement
- Seiko 6R54
- Type
- GMT Traveler
- Case material
- PVD / DLC Coated
- Case shape
- Round
- Dial
- Green
- Dial finish
- Other
- Complications
- GMT / Dual Time
- Crystal
- Curved sapphire crystal with anti-reflective coating on inner surface
- Power reserve
- 72h
- Straps
- Leather
- Production
- In production
- Origin
- Japanese
- Era
- Contemporary
Reviews
Reviews of the Prospex line
5 NEW Watch Releases You Need To Know About This Week - July 2026
24 Hours Time · Jul 26, 2026 · 8:41
Watch from 5:16
