Seiko Cal. 5648 - 191

The Seiko 5648-191 represents an important milestone in Seiko's 1981 lineup. Powered by the 5648 caliber with 24j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-ceff785a5504]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

White

Jewels

24j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1981

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