Seiko Cal. 7056 - 905

Released in 1980, the Cal. 7056 with design code 905 was part of Seiko's domestic market collection. Powered by the 7056 caliber with 33j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-da2cff32b4b2]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

8.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

190m

Dial Color

Champagne

Jewels

33j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1980

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