Seiko Cal. 7121 - 437

The 7121-437 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 7121 caliber with 36j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-ede86c890bac]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Cream

Jewels

36j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1990

Related Models

• Seiko 6266-108
• Seiko 0793-631
• Seiko 0798-149
• Seiko 6610-190
• Seiko 7146-741
• Seiko 5695-654
• Seiko 3822-418
• Seiko 0736-231
• Seiko 6691-785
• Seiko 5611-324
• Seiko 6182-718
• Seiko 6345-800