Seiko Cal. 5646 - 211

The Seiko 5646-211 represents an important milestone in Seiko's 1987 lineup. Powered by the 5646 caliber with 17j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-9c178fd56ede]

Also known as: Sumo, Navigator

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

34mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Green

Jewels

17j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1987

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