Seiko Cal. 3870 - 658

This Spring Drive model from 1965 features a 36mm Gold-Plated case. Powered by the 3870 caliber with 33j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-d54e7bafdd59]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

8.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1965

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