Seiko Cal. 4527 - 257

This Hand-Winding model from 1970 features a 34mm Gold-Plated case. With its 18mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-67c48106abc6]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

15.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Black

Jewels

31j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1970

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