Seiko Cal. 3870 - 845

The Seiko 3870-845 represents an important milestone in Seiko's 1988 lineup. Powered by the 3870 caliber with 35j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-84a349a10c05]

Also known as: Navigator

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

38mm

Case Thickness

9.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

Navy

Jewels

35j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1988

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