Seiko Cal. 4578 - 977

This Hand-Winding model from 1997 features a 46mm Stainless Steel case. Powered by the 4578 caliber with 27j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-ceb0148ee8cb]

Also known as: Monster, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

9.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Champagne

Jewels

27j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1997

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