Seiko Cal. 5231 - 520

Released in 1976, the Cal. 5231 with design code 520 was part of Seiko's domestic market collection. With its 21mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-7ec068fa1546]

Also known as: Silverwave, Emperor

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

10.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Green

Jewels

20j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1976

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