Seiko Cal. 6642 - 552

Seiko 6642-552

This Spring Drive model from 1969 features a 44mm Hardlex-Coated Steel case. Powered by the 6642 caliber with 22j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-f9c113093314]

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
44mm
Case Thickness
8.2mm
Lug Width
18mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
60m
Dial Color
Navy
Jewels
22j
Frequency
36,000 bph
Power Reserve
52 hours
Year
1969

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seikata-wm-f9c113093314