Seiko Cal. 5237 - 503

The 5237-503 is a sought-after Spring Drive piece from Seiko's golden era. With its 18mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-85eb77703dae]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

13.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Navy

Jewels

28j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1966

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