Seiko Cal. 4577 - 855

The Seiko 4577-855 represents an important milestone in Seiko's 1980 lineup. Powered by the 4577 caliber with 33j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-6aa19df6984d]

Also known as: Rally, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

8.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

33j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1980

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