Seiko Cal. 6633 - 446

This Quartz model from 1978 features a 41mm Two-Tone case. Powered by the 6633 caliber with 23j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-4027d3ad5aa4]

Also known as: Bellmatic

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

41mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Silver

Jewels

23j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1978

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