Seiko Cal. 5630 - 901

The Seiko 5630-901 represents an important milestone in Seiko's 1975 lineup. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-fe94bcd1d5dc]

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

8.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Burgundy

Jewels

26j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1975

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