Seiko Cal. 0731 - 630

The Seiko 0731-630 represents an important milestone in Seiko's 1970 lineup. It features a Cream dial protected by a Acrylic crystal and offers 80m of water resistance. [seikata-wm-f7b3fba7cff6]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

12.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Cream

Jewels

29j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1970

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