Seiko Cal. 6637 - 507

Seiko 6637-507

This Hand-Winding model from 1979 features a 39mm Gold-Plated case. With its 20mm lug width and 12.5mm profile, it sits comfortably on most wrists. [seikata-wm-6f00afa72c3c]

Also known as: Monster

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
39mm
Case Thickness
12.5mm
Lug Width
20mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
170m
Dial Color
White
Jewels
34j
Frequency
28,800 bph
Power Reserve
64 hours
Year
1979

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seikata-wm-6f00afa72c3c