Seiko Cal. 5646 - 200

The Seiko 5646-200 represents an important milestone in Seiko's 1984 lineup. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-bef2dfedc410]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

41mm

Case Thickness

11.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Silver

Jewels

29j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1984

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