Seiko Cal. 4456 - 975

The Seiko 4456-975 represents an important milestone in Seiko's 1986 lineup. It features a Navy dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-0a2a8dfb3a90]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

17j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1986

Related Models

• Seiko 6355-290
• Seiko 6670-966
• Seiko 4518-851
• Seiko 6223-898
• Seiko 7147-593
• Seiko 6249-485
• Seiko 3813-985
• Seiko 6295-976
• Seiko 4558-239
• Seiko 6656-436
• Seiko 6612-962
• Seiko 7150-651