Seiko Cal. 6331 - 171

This Spring Drive model from 1986 features a 45mm Hardlex-Coated Steel case. It features a Burgundy dial protected by a Mineral crystal and offers 200m of water resistance. [seikata-wm-0be188c5bc2b]

Also known as: Bellmatic, Navigator

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

200m

Dial Color

Burgundy

Jewels

24j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1986

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