Seiko Cal. 6620 - 399

This Automatic model from 1997 features a 40mm Stainless Steel case. Powered by the 6620 caliber with 36j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-82f98a66abb7]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

14.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1997

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