Seiko Cal. 6399 - 231

Released in 1980, the Cal. 6399 with design code 231 was part of Seiko's domestic market collection. It features a Navy dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-5fd56de78a6d]

Also known as: Turtle

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

38mm

Case Thickness

14.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

Navy

Jewels

30j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1980

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