Seiko Cal. 6616 - 861

The Seiko 6616-861 represents an important milestone in Seiko's 1977 lineup. The Inner Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-c424d2c97198]

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

41mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

26j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1977

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