Seiko Cal. 6616 - 578

The Seiko 6616-578 represents an important milestone in Seiko's 1978 lineup. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-50908ef93ac1]

Also known as: Sea Horse

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

38mm

Case Thickness

8.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Silver

Jewels

33j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1978

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