Seiko Cal. 0720 - 729

The Seiko 0720-729 represents an important milestone in Seiko's 1977 lineup. The Bidirectional bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-519f9d925ab3]

Also known as: Tuna, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Green

Jewels

25j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1977

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