Seiko Cal. 4440 - 858

This Spring Drive model from 1972 features a 43mm PVD Black case. It features a Navy dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-8c3d2e52f4be]

Also known as: Tuna, UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

8.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

21j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1972

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