Seiko Cal. 6663 - 520

The Seiko 6663-520 represents an important milestone in Seiko's 1996 lineup. The Fixed bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-3626eadb04c0]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

12.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

70m

Dial Color

Green

Jewels

35j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1996

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