Seiko Cal. 6312 - 170

Seiko 6312-170

The 6312-170 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6312 caliber with 33j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-18df244abcbd]

Also known as: Sumo, Bellmatic

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
34mm
Case Thickness
11.3mm
Lug Width
19mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
90m
Dial Color
Blue Sunburst
Jewels
33j
Frequency
36,000 bph
Power Reserve
37 hours
Year
1973

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