Seiko Cal. 3864 - 523

The Seiko 3864-523 represents an important milestone in Seiko's 1999 lineup. Powered by the 3864 caliber with 31j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-1ebd17236f98]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

8.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

130m

Dial Color

Cream

Jewels

31j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1999

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