Seiko Cal. 4437 - 273

The 4437-273 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4437 caliber with 32j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-df379547ed76]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

45mm

Case Thickness

15.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

White

Jewels

32j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1975

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