Seiko Cal. 6366 - 217

The 6366-217 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6366 caliber with 29j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-534e0c7e8c8b]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Black

Jewels

29j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1988

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