Seiko Cal. 4515 - 378

The Seiko 4515-378 represents an important milestone in Seiko's 1973 lineup. Powered by the 4515 caliber with 31j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-a2fe373164fb]

Also known as: Rally

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Silver

Jewels

31j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1973

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