Seiko Cal. 6321 - 646

The Seiko 6321-646 represents an important milestone in Seiko's 1996 lineup. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-3be74da29bc4]

Also known as: Tuna, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1996

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