Seiko Cal. 5644 - 605

The Seiko 5644-605 represents an important milestone in Seiko's 1996 lineup. Powered by the 5644 caliber with 29j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-72e3db6e3c27]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

39mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Burgundy

Jewels

29j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1996

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