Seiko Cal. 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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