Seiko Cal. 5641 - 649

The Seiko 5641-649 represents an important milestone in Seiko's 1998 lineup. Powered by the 5641 caliber with 34j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-495a4345dab9]

Also known as: Silverwave

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

14.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

34j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1998

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