Seiko Cal. 6645 - 651

The Seiko 6645-651 represents an important milestone in Seiko's 1994 lineup. It features a White dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-5a989eab7585]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

15.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

White

Jewels

21j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1994

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