Seiko Cal. 6698 - 637

Seiko 6698-637

This Hand-Winding model from 1976 features a 41mm Hardlex-Coated Steel case. With its 22mm lug width and 13.0mm profile, it sits comfortably on most wrists. [seikata-wm-370ed7421d0a]

Also known as: Tuna

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
13.0mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
150m
Dial Color
Cream
Jewels
34j
Frequency
36,000 bph
Power Reserve
46 hours
Year
1976

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seikata-wm-370ed7421d0a