Seiko Cal. 3851 - 931

This Hand-Winding model from 1999 features a 42mm Two-Tone case. Powered by the 3851 caliber with 34j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-1e96d1271d99]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

11.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

White

Jewels

34j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1999

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