Seiko Cal. 4537 - 478

This Kinetic model from 1975 features a 40mm PVD Black case. Powered by the 4537 caliber with 28j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-cbb08bc7d40b]

Also known as: World Timer, Baby Tuna

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Black

Jewels

28j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1975

Related Models

• Seiko 6117-995
• Seiko 5615-311
• Seiko 3882-849
• Seiko 7018-820
• Seiko 6656-725
• Seiko 0740-822
• Seiko 7195-396
• Seiko 7013-461
• Seiko 6297-247
• Seiko 6296-518
• Seiko 0749-538
• Seiko 0793-174