Seiko Cal. 4487 - 678

The 4487-678 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Navy dial protected by a Acrylic crystal and offers 110m of water resistance. [seikata-wm-2edd112fdc46]

Also known as: Monster, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

9.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

110m

Dial Color

Navy

Jewels

21j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1974

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