Seiko Cal. 4550 - 277

This Spring Drive model from 1986 features a 39mm Titanium case. Powered by the 4550 caliber with 34j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-56ad37c786a7]

Also known as: Bellmatic, Flighty

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

12.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Green

Jewels

34j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1986

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