Seiko Cal. 5240 - 521

Released in 1973, the Cal. 5240 with design code 521 was part of Seiko's domestic market collection. With its 22mm lug width and 14.2mm profile, it sits comfortably on most wrists. [seikata-wm-74a46c2d1d3b]

Also known as: Panda, Emperor

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

14.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Green

Jewels

22j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1973

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