Seiko Cal. 7181 - 813

The 7181-813 is a sought-after Spring Drive piece from Seiko's golden era. It features a Champagne dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-7b6bd66cccb7]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Champagne

Jewels

31j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1985

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