Seiko Cal. 5633 - 211

Released in 1973, the Cal. 5633 with design code 211 was part of Seiko's domestic market collection. Powered by the 5633 caliber with 23j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-48b35060f5fd]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

23j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1973

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