Seiko Cal. 0731 - 227

Released in 1981, the Cal. 0731 with design code 227 was part of Seiko's domestic market collection. It features a Navy dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-a8a137ab9db7]

Also known as: Silverwave, Sea Horse

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

34mm

Case Thickness

8.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1981

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