Seiko Cal. 0731 - 660

The 0731-660 is a sought-after Solar piece from Seiko's golden era. It features a Cream dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-0862c6d1e789]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

10.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Cream

Jewels

21j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1984

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