Seiko Cal. 5661 - 435

This Hand-Winding model from 1968 features a 40mm Two-Tone case. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-d4e9f7f599e3]

Also known as: Flighty

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1968

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