Seiko Cal. 6645 - 638

Seiko 6645-638

This Quartz model from 1984 features a 46mm Hardlex-Coated Steel case. Powered by the 6645 caliber with 30j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-283d41a757ab]

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
8.9mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
110m
Dial Color
Black
Jewels
30j
Frequency
36,000 bph
Power Reserve
52 hours
Year
1984

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seikata-wm-283d41a757ab