Seiko Cal. 6657 - 644

The Seiko 6657-644 represents an important milestone in Seiko's 1993 lineup. The Coin-Edge bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-8e9aeca7997b]

Also known as: Panda, Golden Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

35mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Navy

Jewels

19j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1993

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