Seiko Cal. 6691 - 268

The 6691-268 is a sought-after Spring Drive piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-0e2a362224d6]

Also known as: Tuna, Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

9.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1977

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