Seiko Cal. 6643 - 702

Seiko 6643-702

This Hand-Winding model from 1970 features a 34mm Hardlex-Coated Steel case. Powered by the 6643 caliber with 28j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-c3494fd181dc]

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
34mm
Case Thickness
9.3mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
30m
Dial Color
Champagne
Jewels
28j
Frequency
28,800 bph
Power Reserve
68 hours
Year
1970

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seikata-wm-c3494fd181dc