Seiko Cal. 6663 - 541

Seiko 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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