Seiko Cal. 5663 - 377

The Seiko 5663-377 represents an important milestone in Seiko's 1989 lineup. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-55c2ebbb0bab]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

39mm

Case Thickness

13.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Champagne

Jewels

30j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1989

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