Seiko Cal. 6391 - 140

This Spring Drive model from 1970 features a 45mm PVD Black case. It features a Burgundy dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-40a984e01216]

Also known as: Turtle, Shogun

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

9.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Burgundy

Jewels

21j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1970

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