Seiko Cal. 6164 - 947

The Seiko 6164-947 represents an important milestone in Seiko's 1975 lineup. With its 21mm lug width and 8.9mm profile, it sits comfortably on most wrists. [seikata-wm-b10781917ef8]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

8.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Burgundy

Jewels

17j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1975

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