Seiko Cal. 7031 - 174

Released in 1970, the Cal. 7031 with design code 174 was part of Seiko's domestic market collection. It features a Silver dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-1fc81dcc4492]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

11.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Silver

Jewels

35j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1970

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