Seiko Cal. 6657 - 826

This Automatic model from 1999 features a 40mm Gold-Plated case. It features a Black dial protected by a Mineral crystal and offers 170m of water resistance. [seikata-wm-5d635a97ae8c]

Also known as: UFO, Sportsmatic

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Black

Jewels

34j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1999

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