Seiko Cal. 3857 - 444

The 3857-444 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3857 caliber with 23j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-2e3dd5ba3a6e]

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Navy

Jewels

23j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1966

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