Seiko Cal. 7056 - 257

The Seiko 7056-257 represents an important milestone in Seiko's 1978 lineup. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-19e81a0dde0e]

Also known as: UFO, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Champagne

Jewels

20j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1978

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