Seiko Cal. 7031 - 100

Seiko 7031-100

This Quartz model from 1977 features a 43mm Two-Tone case. Powered by the 7031 caliber with 26j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-5b22be9f577c]

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
43mm
Case Thickness
8.5mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
110m
Dial Color
Blue Sunburst
Jewels
26j
Frequency
28,800 bph
Power Reserve
53 hours
Year
1977

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seikata-wm-5b22be9f577c