Seiko Cal. 5633 - 878

The Seiko 5633-878 represents an important milestone in Seiko's 1989 lineup. Powered by the 5633 caliber with 31j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-36fd2f7be454]

Also known as: Turtle, Bellmatic

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

10.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

White

Jewels

31j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1989

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