Seiko Cal. 5253 - 903

The Seiko 5253-903 represents an important milestone in Seiko's 1966 lineup. It features a Green dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-37a1afd6339e]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Titanium

Case Width

43mm

Case Thickness

8.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1966

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