Seiko Cal. 5251 - 415

This Automatic model from 1966 features a 42mm Two-Tone case. With its 19mm lug width and 10.0mm profile, it sits comfortably on most wrists. [seikata-wm-3c25523ecb57]

Also known as: Tuna, Emperor

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

10.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Burgundy

Jewels

18j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1966

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