Seiko Cal. 5681 - 442

Seiko 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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