Seiko Cal. 4512 - 660

The Seiko 4512-660 represents an important milestone in Seiko's 1984 lineup. The Bidirectional bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-b5b928beb8e7]

Also known as: Sumo, Bullhead

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

10.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Burgundy

Jewels

29j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1984

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