Seiko Cal. 6635 - 447

This Hand-Winding model from 1987 features a 37mm Hardlex-Coated Steel case. It features a Silver dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-1c4f35b7c065]

Also known as: Panda, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Silver

Jewels

26j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1987

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