Seiko Cal. 6391 - 515

This Spring Drive model from 1989 features a 46mm PVD Black case. It features a Navy dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-16982c28a7ce]

Also known as: Turtle

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

15.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Navy

Jewels

17j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1989

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