Seiko Cal. 4437 - 935

The 4437-935 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4437 caliber with 23j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-c02ccaf18591]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

14.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

150m

Dial Color

White

Jewels

23j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1988

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