Seiko Cal. 4427 - 148

This Spring Drive model from 1986 features a 41mm Two-Tone case. Powered by the 4427 caliber with 27j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-dcb55be1f8c8]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Burgundy

Jewels

27j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1986

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