Seiko Cal. 5645 - 628

The 5645-628 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 5645 caliber with 29j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-bb73367024cb]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

40mm

Case Thickness

13.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

160m

Dial Color

Silver

Jewels

29j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1992

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