Seiko Cal. 6646 - 458

The Seiko 6646-458 represents an important milestone in Seiko's 1969 lineup. Powered by the 6646 caliber with 21j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-c470c3339256]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

White

Jewels

21j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1969

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