Seiko Cal. 6387 - 135

This Hand-Winding model from 1986 features a 36mm PVD Black case. Powered by the 6387 caliber with 23j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-e94a40d1ebbc]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

36mm

Case Thickness

13.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Silver

Jewels

23j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1986

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