Seiko Cal. 6645 - 301

The Seiko 6645-301 represents an important milestone in Seiko's 1975 lineup. Powered by the 6645 caliber with 29j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-f7f9440d1d94]

Also known as: Baby Tuna, Arnie

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

13.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Black

Jewels

29j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1975

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