Seiko Cal. 5646 - 495

The Seiko 5646-495 represents an important milestone in Seiko's 1969 lineup. Powered by the 5646 caliber with 20j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-76683cfdccde]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

13.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Champagne

Jewels

20j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1969

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