Seiko Cal. 6131 - 678

Seiko 6131-678

This Automatic model from 1979 features a 40mm Two-Tone case. Powered by the 6131 caliber with 30j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-287c4c8b4383]

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
40mm
Case Thickness
9.7mm
Lug Width
22mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
120m
Dial Color
White
Jewels
30j
Frequency
28,800 bph
Power Reserve
66 hours
Year
1979

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seikata-wm-287c4c8b4383