Seiko Cal. 5661 - 442

The 5661-442 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5661 caliber with 17j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-6673c78fab67]

Also known as: Turtle, Emperor

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

11.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Green

Jewels

17j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1998

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