Seiko Cal. 6657 - 444

The Seiko 6657-444 represents an important milestone in Seiko's 1999 lineup. The Coin-Edge bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-e4e324312d34]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

46mm

Case Thickness

9.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Black

Jewels

22j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1999

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