Seiko Cal. 5663 - 870

Seiko 5663-870

This Spring Drive model from 1979 features a 37mm Titanium case. With its 22mm lug width and 12.7mm profile, it sits comfortably on most wrists. [seikata-wm-e53a9f7e5d1e]

Also known as: Navigator, Sea Horse

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
37mm
Case Thickness
12.7mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
110m
Dial Color
Silver
Jewels
35j
Frequency
21,600 bph
Power Reserve
68 hours
Year
1979

Related Models

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