Seiko Cal. 6611 - 337

This Spring Drive model from 1978 features a 41mm Hardlex-Coated Steel case. Powered by the 6611 caliber with 18j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-9ca5e59d497e]

Also known as: Bellmatic, World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

12.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Black

Jewels

18j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1978

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