Seiko Cal. 5660 - 830

The Seiko 5660-830 represents an important milestone in Seiko's 1977 lineup. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-964e5ff1da51]

Also known as: Samurai, Panda

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

12.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Green

Jewels

36j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1977

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