Seiko Cal. 5681 - 442

The 5681-442 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 5681 caliber with 22j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-7cd4ed9fe6f6]

Also known as: Bullhead

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

37mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1973

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