Seiko Cal. 5640 - 352

This Hand-Winding model from 1975 features a 41mm Gold-Plated case. Powered by the 5640 caliber with 24j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-c4f79dade0f0]

Also known as: Monster, UFO

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

8.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Champagne

Jewels

24j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1975

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