Seiko Cal. 6645 - 724

The Seiko 6645-724 represents an important milestone in Seiko's 1970 lineup. Powered by the 6645 caliber with 21j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-d4722109c51d]

Also known as: Panda

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

12.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

30m

Dial Color

Cream

Jewels

21j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1970

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