Seiko Cal. 6691 - 694

This Spring Drive model from 1986 features a 34mm Gold-Plated case. It features a White dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-360ebcab3a1b]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

White

Jewels

33j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1986

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