Seiko Cal. 6691 - 205

Seiko 6691-205

This Automatic model from 1965 features a 38mm Hardlex-Coated Steel case. Powered by the 6691 caliber with 34j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-2103f82bed42]

Also known as: Sumo, Baby Tuna

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
10.3mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
190m
Dial Color
Blue Sunburst
Jewels
34j
Frequency
21,600 bph
Power Reserve
64 hours
Year
1965

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