Seiko Cal. 7131 - 654

The 7131-654 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-8aa1f1cf3c48]

Also known as: Rally, Emperor

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

8.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1970

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