Seiko Cal. 0740 - 666

The Seiko 0740-666 represents an important milestone in Seiko's 1973 lineup. It features a White dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-ef082d374f6a]

Also known as: Turtle, Sumo

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

12.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

180m

Dial Color

White

Jewels

24j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1973

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