Seiko Cal. 6657 - 603

The Seiko 6657-603 represents an important milestone in Seiko's 1997 lineup. It features a Silver dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-fd63e31f5ce3]

Also known as: Sportsmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

38mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Silver

Jewels

33j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1997

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