Seiko Cal. 5661 - 749

Released in 1978, the Cal. 5661 with design code 749 was part of Seiko's domestic market collection. It features a Silver dial protected by a Acrylic crystal and offers 110m of water resistance. [seikata-wm-f4a108520f70]

Also known as: Samurai, Bellmatic

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Silver

Jewels

35j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1978

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