Seiko Cal. 5661 - 104

The Seiko 5661-104 represents an important milestone in Seiko's 1974 lineup. The Inner Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-6e7968613f2d]

Also known as: Pogue, Bellmatic

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

39mm

Case Thickness

8.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Green

Jewels

26j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1974

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