Seiko Cal. 5645 - 946

The Seiko 5645-946 represents an important milestone in Seiko's 1983 lineup. Powered by the 5645 caliber with 30j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-3a982af15fe8]

Also known as: Helmet, UFO

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Silver

Jewels

30j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1983

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