Seiko Cal. 6616 - 258

The Seiko 6616-258 represents an important milestone in Seiko's 1999 lineup. With its 22mm lug width and 9.9mm profile, it sits comfortably on most wrists. [seikata-wm-b88f82e300e8]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

44mm

Case Thickness

9.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Green

Jewels

28j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1999

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