Seiko Cal. 5231 - 654

The 5231-654 is a sought-after Spring Drive piece from Seiko's golden era. It features a Burgundy dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-fb4cab02239f]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

15.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

110m

Dial Color

Burgundy

Jewels

26j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1985

Related Models

• Seiko 4458-577
• Seiko 5644-109
• Seiko 5296-947
• Seiko 6635-966
• Seiko 3810-990
• Seiko 7076-526
• Seiko 3876-528
• Seiko 5260-482
• Seiko 4446-921
• Seiko 6217-904
• Seiko 7128-957
• Seiko 4569-643