Seiko Cal. 6191 - 421

The Seiko 6191-421 represents an important milestone in Seiko's 1966 lineup. The Coin-Edge bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-fd3039554768]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

15.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Black

Jewels

22j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1966

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