Seiko Cal. 6663 - 541

The 6663-541 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6663 caliber with 25j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-fb249c9c4042]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Champagne

Jewels

25j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1983

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