Seiko Cal. 6643 - 759

This Hand-Winding model from 1989 features a 36mm Gold-Plated case. It features a Burgundy dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-13f4942d6feb]

Also known as: Bullhead, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

8.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Burgundy

Jewels

32j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1989

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