Seiko Cal. 4428 - 300

This Quartz model from 1985 features a 37mm Gold-Plated case. Powered by the 4428 caliber with 20j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-2644ec9c97c5]

Also known as: Golden Tuna

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

13.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

70m

Dial Color

Green

Jewels

20j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1985

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