Seiko Cal. 5633 - 828

The Seiko 5633-828 represents an important milestone in Seiko's 1980 lineup. Powered by the 5633 caliber with 32j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-e015614f9c76]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

39mm

Case Thickness

12.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

150m

Dial Color

Burgundy

Jewels

32j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1980

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