Seiko Cal. 5620 - 331

This Spring Drive model from 1988 features a 43mm Stainless Steel case. It features a Navy dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-89c4f60bd9b2]

Also known as: Helmet, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

17j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1988

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