Seiko Cal. 6616 - 721

The Seiko 6616-721 represents an important milestone in Seiko's 1996 lineup. It features a Black dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-c66aaf3dda27]

Also known as: Arnie

Specifications

Movement

Solar

Case Material

Titanium

Case Width

40mm

Case Thickness

8.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Black

Jewels

33j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1996

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