Seiko Cal. 5663 - 591

Seiko 5663-591

This Spring Drive model from 1969 features a 45mm Hardlex-Coated Steel case. With its 19mm lug width and 14.7mm profile, it sits comfortably on most wrists. [seikata-wm-2b397f6ca56a]

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
14.7mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
90m
Dial Color
Black
Jewels
23j
Frequency
21,600 bph
Power Reserve
62 hours
Year
1969

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