Seiko Cal. 7131 - 227

The 7131-227 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7131 caliber with 26j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-32bd2d17e1fe]

Also known as: Sportsmatic, Arnie

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

12.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

Cream

Jewels

26j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1965

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