Seiko Cal. 5661 - 461

The Seiko 5661-461 represents an important milestone in Seiko's 1975 lineup. Powered by the 5661 caliber with 27j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-9a26b326b82c]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

40mm

Case Thickness

13.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

110m

Dial Color

Burgundy

Jewels

27j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1975

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