Seiko Cal. 5645 - 650

The Seiko 5645-650 represents an important milestone in Seiko's 1993 lineup. Powered by the 5645 caliber with 26j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-2029e287b8b2]

Also known as: Helmet, Flighty

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

8.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Green

Jewels

26j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1993

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