Seiko Cal. 0731 - 668

The Seiko 0731-668 represents an important milestone in Seiko's 1993 lineup. It features a Navy dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-0df8ca39072f]

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

14.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Navy

Jewels

25j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1993

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