Seiko Cal. 6121 - 412

Seiko 6121-412

This Automatic model from 1978 features a 34mm Hardlex-Coated Steel case. Powered by the 6121 caliber with 18j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-93f846382a1d]

Also known as: Sumo

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
34mm
Case Thickness
12.2mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
50m
Dial Color
Blue Sunburst
Jewels
18j
Frequency
28,800 bph
Power Reserve
72 hours
Year
1978

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