Seiko Cal. 4510 - 378

The Seiko 4510-378 represents an important milestone in Seiko's 1974 lineup. Powered by the 4510 caliber with 29j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-98b776e72460]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

9.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Silver

Jewels

29j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1974

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