Seiko Cal. 7031 - 791

Seiko 7031-791

This Automatic model from 1977 features a 40mm Two-Tone case. Powered by the 7031 caliber with 30j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-388e66d06b84]

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
40mm
Case Thickness
12.1mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
200m
Dial Color
Black
Jewels
30j
Frequency
21,600 bph
Power Reserve
56 hours
Year
1977

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seikata-wm-388e66d06b84