Seiko Cal. 3813 - 678

The Seiko 3813-678 represents an important milestone in Seiko's 1974 lineup. Powered by the 3813 caliber with 28j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-35c64364fde7]

Also known as: Arnie

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

13.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

28j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1974

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