Seiko Cal. 7057 - 866

The Seiko 7057-866 represents an important milestone in Seiko's 1978 lineup. Powered by the 7057 caliber with 29j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-dc3634277c36]

Also known as: Monster, Tuna

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

15.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

29j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1978

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