Seiko Cal. 6312 - 442

Seiko 6312-442

The 6312-442 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6312 caliber with 28j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-4e91a799203a]

Also known as: Golden Tuna

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
41mm
Case Thickness
14.9mm
Lug Width
21mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
70m
Dial Color
Green
Jewels
28j
Frequency
21,600 bph
Power Reserve
49 hours
Year
1993

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