Seiko Cal. 7181 - 137

The Seiko 7181-137 represents an important milestone in Seiko's 1967 lineup. It features a Champagne dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-750c45c27427]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

10.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Champagne

Jewels

29j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1967

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