Seiko Cal. 6611 - 684

This Spring Drive model from 1972 features a 40mm Two-Tone case. Powered by the 6611 caliber with 23j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-3040fa4e86da]

Also known as: Bellmatic, World Timer

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

11.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

White

Jewels

23j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1972

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