Seiko Cal. 6668 - 521

The Seiko 6668-521 represents an important milestone in Seiko's 1989 lineup. It features a Silver dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-77629490fcbd]

Also known as: Turtle

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

46mm

Case Thickness

14.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Silver

Jewels

22j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1989

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