Seiko Cal. 6691 - 760

The Seiko 6691-760 represents an important milestone in Seiko's 1973 lineup. It features a Green dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-e8cacb408967]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

35mm

Case Thickness

12.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1973

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