Seiko Cal. 3815 - 380

The 3815-380 is a sought-after Quartz piece from Seiko's golden era. Powered by the 3815 caliber with 23j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-3569cfa1cab1]

Also known as: Helmet, Navigator

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

41mm

Case Thickness

12.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Black

Jewels

23j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1969

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