Seiko Cal. 7031 - 933

The 7031-933 is a sought-after Quartz piece from Seiko's golden era. It features a Black dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-b840980183bd]

Also known as: Helmet, Crown

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

14.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Black

Jewels

23j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1998

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