Seiko Cal. 0721 - 511

The Seiko 0721-511 represents an important milestone in Seiko's 1975 lineup. It features a Navy dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-5e85d3adb6fd]

Also known as: Turtle, UFO

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

41mm

Case Thickness

8.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Navy

Jewels

28j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1975

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