Seiko Cal. 3820 - 305

This Hand-Winding model from 1970 features a 37mm PVD Black case. Powered by the 3820 caliber with 25j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-2b8255960018]

Also known as: Silverwave

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Burgundy

Jewels

25j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1970

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