Seiko Cal. 6391 - 271

The 6391-271 is a sought-after Quartz piece from Seiko's golden era. It features a White dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-4e282bbfc718]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

46mm

Case Thickness

15.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

160m

Dial Color

White

Jewels

30j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1973

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