Seiko Cal. 6637 - 305

This Spring Drive model from 1981 features a 46mm Gold-Plated case. It features a Navy dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-1a5225846060]

Also known as: Goldfeather

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

11.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

28j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1981

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