Seiko Cal. 6644 - 351

The Seiko 6644-351 represents an important milestone in Seiko's 1996 lineup. It features a Black dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-e84792bd2020]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

13.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

180m

Dial Color

Black

Jewels

24j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1996

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