Seiko Cal. 6331 - 520

Seiko 6331-520

This Solar model from 1976 features a 43mm Two-Tone case. Powered by the 6331 caliber with 30j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-311da153ef5f]

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
43mm
Case Thickness
8.9mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
200m
Dial Color
Black
Jewels
30j
Frequency
28,800 bph
Power Reserve
68 hours
Year
1976

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