Seiko Cal. 6697 - 512

The 6697-512 is a sought-after Spring Drive piece from Seiko's golden era. It features a Navy dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-532a91a8d909]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Navy

Jewels

25j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1974

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