Seiko Cal. 6616 - 864

The Seiko 6616-864 represents an important milestone in Seiko's 1978 lineup. It features a Blue Sunburst dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-50c4a796f0ea]

Also known as: Tuna, Golden Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

42mm

Case Thickness

8.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1978

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