Seiko Cal. 6637 - 239

Seiko 6637-239

This Spring Drive model from 1987 features a 36mm Two-Tone case. With its 19mm lug width and 13.6mm profile, it sits comfortably on most wrists. [seikata-wm-f890645aded6]

Also known as: Pogue, Navigator

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
36mm
Case Thickness
13.6mm
Lug Width
19mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
140m
Dial Color
Champagne
Jewels
27j
Frequency
21,600 bph
Power Reserve
43 hours
Year
1987

Related Models

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