Seiko Cal. 6231 - 445

This Spring Drive model from 1989 features a 40mm PVD Black case. It features a Silver dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-696a08654cd9]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

12.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

36j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1989

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