Seiko Cal. 4533 - 550

The Seiko 4533-550 represents an important milestone in Seiko's 1977 lineup. Powered by the 4533 caliber with 34j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-e4be9413b488]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Burgundy

Jewels

34j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1977

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