Seiko Cal. 7056 - 830

The 7056-830 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7056 caliber with 25j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-7df9c0a37aa4]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

White

Jewels

25j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1980

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