Seiko Cal. 5660 - 622

The Seiko 5660-622 represents an important milestone in Seiko's 1990 lineup. Powered by the 5660 caliber with 33j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-821ef1d289be]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

39mm

Case Thickness

10.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Navy

Jewels

33j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1990

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