Seiko Cal. 6646 - 310

Seiko 6646-310

This Quartz model from 1975 features a 41mm Two-Tone case. Powered by the 6646 caliber with 29j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-1150ebbc156b]

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
41mm
Case Thickness
12.6mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
140m
Dial Color
Black
Jewels
29j
Frequency
28,800 bph
Power Reserve
46 hours
Year
1975

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