Seiko Cal. 5240 - 664

This Spring Drive model from 1975 features a 36mm Titanium case. Powered by the 5240 caliber with 21j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-3e56fb9228b8]

Also known as: Panda, UFO

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Burgundy

Jewels

21j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1975

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