Seiko Cal. 5633 - 249

This Spring Drive model from 1973 features a 40mm Two-Tone case. Powered by the 5633 caliber with 36j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-ecf10e2a4562]

Also known as: Monster, UFO

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

70m

Dial Color

Cream

Jewels

36j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1973

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