Seiko Cal. 5240 - 424

The Seiko 5240-424 represents an important milestone in Seiko's 1983 lineup. Powered by the 5240 caliber with 35j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-efcf1f5bab0b]

Also known as: Goldfeather, Navigator

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

11.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Silver

Jewels

35j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1983

Related Models

• Seiko 6261-634
• Seiko 7194-626
• Seiko 7020-734
• Seiko 6111-784
• Seiko 6288-839
• Seiko 7140-160
• Seiko 5283-975
• Seiko 0760-326
• Seiko 3879-132
• Seiko 6696-431
• Seiko 3840-644
• Seiko 0745-101