Seiko Cal. 5645 - 450

This Solar model from 1993 features a 40mm Two-Tone case. Powered by the 5645 caliber with 27j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-26643aa126f1]

Also known as: Sumo, Sea Horse

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

40mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

27j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1993

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