Seiko Cal. 4552 - 831

The 4552-831 is a sought-after Spring Drive piece from Seiko's golden era. The Coin-Edge bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-a1f9b60e164a]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Cream

Jewels

21j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1978

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