Seiko Cal. 4557 - 821

The Seiko 4557-821 represents an important milestone in Seiko's 1972 lineup. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-8ad1e99234d8]

Also known as: Silverwave, Bellmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

8.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Burgundy

Jewels

34j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1972

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