Seiko Cal. 7139 - 739

Seiko 7139-739

This Automatic model from 1992 features a 40mm Titanium case. Powered by the 7139 caliber with 31j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-ab86d33e80df]

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
40mm
Case Thickness
8.0mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
40m
Dial Color
Green
Jewels
31j
Frequency
21,600 bph
Power Reserve
37 hours
Year
1992

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