Seiko Cal. 3864 - 445

The Seiko 3864-445 represents an important milestone in Seiko's 1976 lineup. Powered by the 3864 caliber with 21j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-b48c7d5b755b]

Also known as: Bullhead, Rally

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

15.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1976

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