Seiko Cal. 4520 - 157

The Seiko 4520-157 represents an important milestone in Seiko's 1990 lineup. Powered by the 4520 caliber with 17j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-35ab3f77e114]

Also known as: Sumo, Crown

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

15.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

Navy

Jewels

17j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1990

Related Models

• Seiko 6661-214
• Seiko 7167-502
• Seiko 4441-678
• Seiko 7071-528
• Seiko 7110-654
• Seiko 6666-671
• Seiko 0792-776
• Seiko 5222-234
• Seiko 5220-609
• Seiko 5611-732
• Seiko 3835-386
• Seiko 4582-522