Alpinist SRPJ91 'GMT': Brushed Silver with White Compass Ring

A rugged SKX007-based custom build combining the distinctive character of the Seiko Alpinist with the sportier styling of the 5KX platform.

This build features a genuine Seiko SRPJ91 OEM dial, complemented by polished black SKX hands with BGW9 lume and a contrasting yellow lightning seconds hand. A rotating white compass chapter ring adds the signature Alpinist-inspired aesthetic and additional functionality.

The brushed and polished silver case is fitted with a screw-down crown, flat sapphire crystal with clear AR coating, and polished SKX007 caseback. Powering the watch is the reliable Seiko NH36A automatic movement with day and date functionality.

Finished with a genuine Seiko SRPM21 OEM green NATO strap, the combination of green, white and yellow accents gives the watch a distinctive field-watch character while retaining the robust proportions of the SKX platform.

Watch Specifications

1. Case: SKX007 Alpinist GMT Brushed/Polished Silver Case
2. Dial: Seiko SRPJ91 “5KX” OEM Dial
3. Crown: Polished Silver Screw-Down Crown
4. Hands: Polished Black SKX Handset – BGW9 Lume
5. Seconds Hand: Yellow Lightning Seconds Hand
6. Chapter Ring: Rotating White Compass Ring
7. Crystal: Flat Sapphire Crystal – Clear AR Coating
8. Date Wheel: White Date Wheel with Black Numerals
9. Movement: Seiko NH36A (TMI) Automatic Movement
10. Caseback: SKX007 Polished Silver Caseback
11. Strap: Seiko SRPM21 OEM Green NATO Strap
12. Water Resistance: 20 Bar / 200 Metres

Case Dimensions

1. Diameter: 42mm
2. Lug-to-Lug: 46.5mm
3. Thickness: 12.5mm
4. Lug Width: 20mm