Seiko Cal. 0720 - 540

The Seiko 0720-540 represents an important milestone in Seiko's 1973 lineup. It features a Silver dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-bf4ba2142502]

Also known as: Tuna

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

12.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Silver

Jewels

20j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1973

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