Seiko Cal. 3891 - 380

The Seiko 3891-380 represents an important milestone in Seiko's 1978 lineup. It features a White dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-01a85d33cd9a]

Also known as: Bellmatic

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

14.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

40m

Dial Color

White

Jewels

35j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1978

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