Seiko Cal. 0740 - 891

The Seiko 0740-891 represents an important milestone in Seiko's 1977 lineup. It features a White dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-9c9f88165a47]

Also known as: Tuna, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

8.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

110m

Dial Color

White

Jewels

29j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1977

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