Seiko Cal. 6661 - 738

The 6661-738 is a sought-after Solar piece from Seiko's golden era. Powered by the 6661 caliber with 23j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-957bc9dc81af]

Also known as: Crown, Golden Tuna

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

10.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Green

Jewels

23j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1980

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