Seiko Cal. 6645 - 105

The Seiko 6645-105 represents an important milestone in Seiko's 1972 lineup. Powered by the 6645 caliber with 20j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-1d3b95280f3c]

Also known as: Pogue, Bullhead

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

14.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Silver

Jewels

20j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1972

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