Seiko Cal. 6640 - 330

This Hand-Winding model from 1982 features a 37mm Stainless Steel case. It features a Silver dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-87c32e12bd5e]

Also known as: Panda, Bullhead

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

15.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

170m

Dial Color

Silver

Jewels

27j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1982

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