Seiko Cal. 6640 - 548

The Seiko 6640-548 represents an important milestone in Seiko's 1996 lineup. Powered by the 6640 caliber with 22j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-d30c93b8c47d]

Also known as: Samurai, Panda

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

12.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

160m

Dial Color

Green

Jewels

22j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1996

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