Seiko Cal. 5661 - 765

Released in 1977, the Cal. 5661 with design code 765 was part of Seiko's domestic market collection. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-b7f5be999ac7]

Also known as: Rally

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1977

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