Seiko Cal. 7031 - 820

The 7031-820 is a sought-after Solar piece from Seiko's golden era. It features a Black dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-0e0ca2cffecf]

Also known as: Rally, Bellmatic

Specifications

Movement

Solar

Case Material

Titanium

Case Width

36mm

Case Thickness

10.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Black

Jewels

25j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1967

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