Seiko Cal. 6630 - 634

Seiko 6630-634

This Automatic model from 1975 features a 42mm Hardlex-Coated Steel case. Powered by the 6630 caliber with 17j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-1381944ae284]

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
15.0mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
110m
Dial Color
Navy
Jewels
17j
Frequency
36,000 bph
Power Reserve
59 hours
Year
1975

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seikata-wm-1381944ae284