Seiko Cal. 7137 - 788

Seiko 7137-788

This Automatic model from 1982 features a 37mm Titanium case. Powered by the 7137 caliber with 20j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-d3f85e95dae0]

Also known as: Tuna, Navigator

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
37mm
Case Thickness
8.4mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
70m
Dial Color
White
Jewels
20j
Frequency
28,800 bph
Power Reserve
71 hours
Year
1982

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