Seiko Cal. 0721 - 243

The Seiko 0721-243 represents an important milestone in Seiko's 1975 lineup. It features a Green dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-83eb70d8fadb]

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

12.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Green

Jewels

33j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1975

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