Seiko Cal. 4487 - 744

This Spring Drive model from 1980 features a 39mm PVD Black case. It features a Navy dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-e65ef4b7b953]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

13.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Navy

Jewels

23j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1980

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