Seiko Cal. 4457 - 850

The Seiko 4457-850 represents an important milestone in Seiko's 1975 lineup. It features a Blue Sunburst dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-3d0d3522e5f4]

Also known as: Bullhead, Goldfeather

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

39mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1975

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