Seiko Cal. 6645 - 150

The Seiko 6645-150 represents an important milestone in Seiko's 1985 lineup. Powered by the 6645 caliber with 25j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-20a8332bce0b]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

15.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Black

Jewels

25j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1985

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