Seiko Cal. 3841 - 639

The 3841-639 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3841 caliber with 19j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-ceeff477056a]

Also known as: Golden Tuna, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

9.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Cream

Jewels

19j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1965

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