Seiko Cal. 6616 - 309

Released in 1986, the Cal. 6616 with design code 309 was part of Seiko's domestic market collection. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-840ce713feb5]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

White

Jewels

21j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1986

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