Seiko Cal. 5633 - 261

The Seiko 5633-261 represents an important milestone in Seiko's 1972 lineup. It features a Navy dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-392c12d5241e]

Also known as: Samurai, Flighty

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

29j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1972

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