Seiko Cal. 4487 - 694

The Seiko 4487-694 represents an important milestone in Seiko's 1975 lineup. It features a Black dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-c2a692e387b7]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

8.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Black

Jewels

19j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1975

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