Seiko Cal. 5641 - 839

The 5641-839 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5641 caliber with 32j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-fee74e0624d6]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

15.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1988

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