Seiko Cal. 5641 - 220

The 5641-220 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5641 caliber with 29j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-efbb046fc6bd]

Also known as: Tuna, Flighty

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

46mm

Case Thickness

12.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Champagne

Jewels

29j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1971

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