Seiko Cal. 6171 - 505

This Automatic model from 1981 features a 40mm Two-Tone case. It features a Black dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-e0d8525e08a1]

Also known as: Sumo, World Timer

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Black

Jewels

32j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1981

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