Seiko Cal. 4537 - 856

The Seiko 4537-856 represents an important milestone in Seiko's 1978 lineup. With its 20mm lug width and 8.1mm profile, it sits comfortably on most wrists. [seikata-wm-fe94e639fe47]

Also known as: UFO, Arnie

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

44mm

Case Thickness

8.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Green

Jewels

25j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1978

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