Seiko Cal. 4487 - 105

The Seiko 4487-105 represents an important milestone in Seiko's 1973 lineup. It features a Cream dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-38c99c3ac20b]

Also known as: Bullhead, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

13.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

50m

Dial Color

Cream

Jewels

18j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1973

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