Seiko Cal. 6641 - 488

This Automatic model from 1973 features a 46mm Two-Tone case. Powered by the 6641 caliber with 21j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-dfdde99d55d2]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

9.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1973

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