Seiko Cal. 4550 - 153

The Seiko 4550-153 represents an important milestone in Seiko's 1999 lineup. The Coin-Edge bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-472bcdf905ef]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Burgundy

Jewels

25j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1999

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