Seiko Cal. 5646 - 402

This Spring Drive model from 1985 features a 37mm PVD Black case. Powered by the 5646 caliber with 18j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-738c78259e62]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Cream

Jewels

18j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1985

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