Seiko Cal. 6164 - 639

Seiko 6164-639

Released in 1970, the Cal. 6164 with design code 639 was part of Seiko's domestic market collection. Powered by the 6164 caliber with 32j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-ccea0c558d28]

Also known as: Bullhead, Baby Tuna

Specifications

Movement
Solar
Case Material
Titanium
Case Width
44mm
Case Thickness
11.0mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
160m
Dial Color
Green
Jewels
32j
Frequency
21,600 bph
Power Reserve
47 hours
Year
1970

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