Seiko Cal. 6691 - 697

The 6691-697 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6691 caliber with 17j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-40e36a4e858f]

Also known as: Tuna, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

10.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

170m

Dial Color

Silver

Jewels

17j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1993

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