Seiko Cal. 5661 - 513

The Seiko 5661-513 represents an important milestone in Seiko's 1974 lineup. It features a Green dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-63c4f212c30d]

Also known as: Crown, Flighty

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Green

Jewels

24j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1974

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