Seiko Cal. 3877 - 491

The Seiko 3877-491 represents an important milestone in Seiko's 1977 lineup. It features a White dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-3ead26e02b71]

Also known as: World Timer, Crown

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

70m

Dial Color

White

Jewels

20j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1977

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