Seiko Cal. 6637 - 340

Seiko 6637-340

This Hand-Winding model from 1985 features a 35mm Titanium case. With its 20mm lug width and 12.6mm profile, it sits comfortably on most wrists. [seikata-wm-af2d0b95f3ca]

Also known as: Goldfeather

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
35mm
Case Thickness
12.6mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
40m
Dial Color
Green
Jewels
30j
Frequency
36,000 bph
Power Reserve
58 hours
Year
1985

Related Models

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