Seiko Cal. 3828 - 370

The 3828-370 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3828 caliber with 25j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-d29813738c42]

Also known as: Shogun, Helmet

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

36mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

80m

Dial Color

Black

Jewels

25j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1978

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