Seiko Cal. 6389 - 644

The Seiko 6389-644 represents an important milestone in Seiko's 1999 lineup. Powered by the 6389 caliber with 32j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-49a236cc1721]

Also known as: Rally, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

44mm

Case Thickness

11.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

Silver

Jewels

32j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1999

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