Seiko Cal. 6611 - 637

This Automatic model from 1984 features a 42mm Hardlex-Coated Steel case. Powered by the 6611 caliber with 23j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-c85bf553226b]

Also known as: Bellmatic, Golden Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

150m

Dial Color

Black

Jewels

23j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1984

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