Seiko Cal. 6613 - 408

This Spring Drive model from 1973 features a 42mm Hardlex-Coated Steel case. Powered by the 6613 caliber with 26j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-bd6ad1c6eefd]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

12.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1973

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