Seiko Cal. 4456 - 391

The Seiko 4456-391 represents an important milestone in Seiko's 1987 lineup. It features a Green dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-f8e1a9a9f9d4]

Also known as: Flighty

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

13.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1987

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