Seiko Cal. 5271 - 540

This Hand-Winding model from 1966 features a 39mm Two-Tone case. Powered by the 5271 caliber with 18j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-60cca4392a77]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

39mm

Case Thickness

8.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

18j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1966

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