Seiko Cal. 4428 - 546

This Automatic model from 1977 features a 41mm Stainless Steel case. Powered by the 4428 caliber with 32j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-f50c42285887]

Also known as: Turtle, Emperor

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

15.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

Burgundy

Jewels

32j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1977

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