Seiko Cal. 3820 - 849

The 3820-849 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3820 caliber with 18j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-712579d6864f]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

8.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Silver

Jewels

18j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1977

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