Seiko Cal. 4511 - 378

The Seiko 4511-378 represents an important milestone in Seiko's 1973 lineup. Powered by the 4511 caliber with 19j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-462e10578754]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

12.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Burgundy

Jewels

19j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1973

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