Seiko Cal. 5231 - 339

The Seiko 5231-339 represents an important milestone in Seiko's 1971 lineup. The Bidirectional bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-1c451f5a72e7]

Also known as: Panda, Silverwave

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

42mm

Case Thickness

10.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1971

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