Seiko Cal. 6665 - 503

The Seiko 6665-503 represents an important milestone in Seiko's 1971 lineup. It features a Silver dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-73e2cdb34b29]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Silver

Jewels

31j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1971

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