Seiko Cal. 7031 - 320

The 7031-320 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7031 caliber with 26j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-75e328b54419]

Also known as: Arnie

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

38mm

Case Thickness

14.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Champagne

Jewels

26j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1978

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