Seiko Cal. 5645 - 409

The Seiko 5645-409 represents an important milestone in Seiko's 1971 lineup. Powered by the 5645 caliber with 28j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-c6eb33cfcc8b]

Also known as: Samurai, Emperor

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

37mm

Case Thickness

8.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

White

Jewels

28j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1971

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