Seiko Cal. 6645 - 806

The Seiko 6645-806 represents an important milestone in Seiko's 1968 lineup. Powered by the 6645 caliber with 32j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-558cce63fa73]

Also known as: Sumo, Bellmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

13.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

120m

Dial Color

Silver

Jewels

32j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1968

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