Seiko Cal. 3860 - 752

The Seiko 3860-752 represents an important milestone in Seiko's 1965 lineup. With its 20mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-0a0d1b303ebd]

Also known as: Helmet, Rally

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Black

Jewels

33j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1965

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