Seiko Cal. 4552 - 309

This Hand-Winding model from 1980 features a 40mm Two-Tone case. Powered by the 4552 caliber with 24j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-0fc662de7fd7]

Also known as: Tuna, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

White

Jewels

24j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1980

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