Seiko Cal. 6640 - 267

Seiko 6640-267

This Solar model from 1972 features a 37mm Stainless Steel case. Powered by the 6640 caliber with 29j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-f2f9e9d5051d]

Also known as: Baby Tuna, Arnie

Specifications

Movement
Solar
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
8.9mm
Lug Width
19mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
160m
Dial Color
White
Jewels
29j
Frequency
36,000 bph
Power Reserve
64 hours
Year
1972

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