Seiko Cal. 6643 - 255

This Spring Drive model from 1999 features a 40mm Two-Tone case. It features a Burgundy dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-e15a443896ad]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

12.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Burgundy

Jewels

24j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1999

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