Seiko Cal. 7054 - 866

The 7054-866 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 7054 caliber with 30j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-bb9bc8b9091e]

Also known as: Tuna, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

15.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Cream

Jewels

30j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1970

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