Seiko Cal. 5665 - 261

The Seiko 5665-261 represents an important milestone in Seiko's 1975 lineup. It features a Cream dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-47a16b4c043f]

Also known as: Helmet, World Timer

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

15.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Cream

Jewels

28j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1975

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