Seiko Cal. 3870 - 316

The 3870-316 is a sought-after Solar piece from Seiko's golden era. Powered by the 3870 caliber with 35j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-91476d225137]

Also known as: Monster, Arnie

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

45mm

Case Thickness

10.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1985

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