Seiko Cal. 0747 - 644

The Seiko 0747-644 represents an important milestone in Seiko's 1999 lineup. Powered by the 0747 caliber with 23j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-fa2ec3e0a6af]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Navy

Jewels

23j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1999

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