Seiko Cal. 6136 - 641

Seiko 6136-641

This Automatic model from 1974 features a 41mm Hardlex-Coated Steel case. Powered by the 6136 caliber with 32j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-d813ab878fda]

Also known as: Helmet, Golden Tuna

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
8.2mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
30m
Dial Color
Blue Sunburst
Jewels
32j
Frequency
36,000 bph
Power Reserve
66 hours
Year
1974

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