Seiko Cal. 6321 - 676

The 6321-676 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6321 caliber with 33j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-fe1011cdd360]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

15.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Black

Jewels

33j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1996

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