Seiko Cal. 5687 - 412

This Hand-Winding model from 1988 features a 36mm Gold-Plated case. With its 19mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-7af33a3027bb]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

White

Jewels

21j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1988

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