Seiko Cal. 0731 - 636

The Seiko 0731-636 represents an important milestone in Seiko's 1999 lineup. The Bidirectional bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-72e476a68a6b]

Also known as: Bellmatic

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

42mm

Case Thickness

14.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Burgundy

Jewels

34j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1999

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