Seiko Cal. 5666 - 551

The 5666-551 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5666 caliber with 24j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-c40435de5210]

Also known as: World Timer, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

14.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Burgundy

Jewels

24j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1985

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