Seiko Cal. 6637 - 139

This Spring Drive model from 1996 features a 45mm Hardlex-Coated Steel case. It features a Burgundy dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-1c9c2ab52bd6]

Also known as: Goldfeather

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

8.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Burgundy

Jewels

27j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1996

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