Seiko Cal. 7055 - 645

Seiko 7055-645

The 7055-645 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7055 caliber with 31j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-e05b1267981e]

Also known as: Tuna, Bullhead

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
39mm
Case Thickness
9.4mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
160m
Dial Color
White
Jewels
31j
Frequency
36,000 bph
Power Reserve
59 hours
Year
1994

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