Seiko Cal. 6310 - 657

This Automatic model from 1969 features a 35mm Titanium case. With its 20mm lug width and 15.0mm profile, it sits comfortably on most wrists. [seikata-wm-a0178c2ffd09]

Also known as: Sportsmatic, Arnie

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

35mm

Case Thickness

15.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Silver

Jewels

33j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1969

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