Seiko Cal. 7056 - 542

The 7056-542 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7056 caliber with 33j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-9cf6e624ec79]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

12.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Cream

Jewels

33j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1984

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