Seiko Cal. 4421 - 665

This Automatic model from 1971 features a 40mm Two-Tone case. Powered by the 4421 caliber with 33j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-38fb93841f96]

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

13.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Cream

Jewels

33j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1971

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